STS 301

42問 • 1年前

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It is a science of collecting,, organizating, summarizing and analyzing information to draw conclusion ir answer questions.

STATISTICS

According to Merriam Webster Dictionary, these are the "factual information used as a basis for reasoning, discussion or calculation".

DATA

What are the 2 types of statistics?

DESCRIPTIVE AND INFERENTIAL STATISTICS

It basically consists of organizing qnd summarizing data. It describe data through numerical summaries, tables and graphs.

DESCRIPTIVE STATISTICS

It is the logical process that involves generalizing from a sample to the population from which the sample was selected and assessing the reliability of such generalization. It is also called as Statistical inference or inductive statistics.

INFERENTIAL STATISTICS

consists of all the members of the group about which you want to draw a conclusion

POPULATION

it is a portion or part of the population of interest selected for analysis

SAMPLE

numerical index describing to characteristic of a polulation

PARAMETER

numerical index describing a characteristic of a sample

STATISTIC

A characteristic of objects, people or events that does not vary. (ex. the temperature at which water bills is a constant)

CONSTANT

a characteristic xof object or events that can take different values

VARIABLE

What are the 2 sources of data?

PRIMARY AND SECONDARY DATA

These are data that come from an original source and are intended to answer a specific research question. This can be taken by interview l,mail-in questionnaire, survey or experimentation.

PRIMARY DATA

Taken from previiusly recorded data (ex. via internet website)

SECONDARY DATA

What are the 2 types of variables?

QUANTITATIVE AND QUALITATIVE VARIABLES

These are variables that yield categorical responses. These words or codes that represent class or category.

QUALITATIVE OR CATEGORICAL VARIABLES

These are variables that take a numerical values representing an amount or quantity.

QUANTITATIVE OR NUMERICAL VARIABLES

What are the 2 experimental classfication of variables?

INDEPENDENT AND DEPENDENT VARIABLES

A variable that can stand alone

INDEPENDENT VARIABLE

Variables that are affected by other variables/reliant on other things

DEPENDENT VARIABLES

What are the 2 classification of Quantitative variable?

DISCRETE AND CONTINUOUS QUANTITATIVE VARIABLES

Quantitative variable that can turn on whole number value

DISCRETE QUANTITATIVE VARIABLES

Quantitative variable that could take on decimal values

CONTINUOUS QUANTITATIVE VARIABLES

Categorical data where categories have no ranking or order (ex. eye color)

NOMINAL

It pertains to ranking

ORDINAL

Numerical data that has no absolute zero

INTERVAL

Numerical data that has an absolute zero

RATIO

It is a process of choosing individuals from population to sample

SAMPLING

What are the 2 types of sampling?

PROBABILITY OR RANDOM SAMPLING AND NON-PROBABILITY OR NON-RANDOM SAMPLING

Using an objective chance mechanism to choose your samples. The probability of selection for sample is known.

PROBABILITY OR RANDOM SAMPLING

What are the 4 Random Sampling techniques?

SIMPLE RANDOM SAMPLING, SYSTEMATIC SAMPLING, STRATEFIED RANDOM SAMPLING AND CLUSTER SAMPLING

There is an equal chance of selection for your samples.

SIMPLE RANDOM SAMPLING

Use of system/pattern in choosing your samples

SYSTEMATIC SAMPLING

Dividing the population into non-overlapping groups called STRATA, then choosing sample from each strata.

STRATEFIED RANDOM SAMPLING

You divide your population into non-overlapping groups, then randomly select a group and choose on samples within that group.

CLUSTER SAMPLING

This is a sampling method where there is no objective chance mechanism.

NON-PROBABILITY/ NON-RANDOM SAMPLING

What are the 5 sampling techniques of Non-probability sampling?

CONVENIENCE, PURPOSIVE, QUOTA, SNOWBALL AND VOLUNTARY SAMPLING

You are choosing samoles that are conveniently available to you.

CONVENIENCE SAMPLING

You are identifying a specific criteria or qualification before an indicidual can be a sample.

PURPOSIVE SAMPLING

Non probability counterpart of stratefied random sampling

QUOTA SAMPLING

We are relying on samples to obtain more samples

SNOWBALL SAMPLING

You are asking your samples to volunteer for your study.

VOLUNTARY SAMPLING

VITMOLOGY-PPT2

Anndrea S. Galupo · 22問 · 1年前

VITMOLOGY-PPT2